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Je développe une application de magasinage. J'utilise le service web pour obtenir des objets. J'appelle la fonction de service Web dans asynctask et j'obtiens des articles avec succès. Mais j'ai ajouté la page de connexion et lorsque l'utilisateur s'est connecté, l'utilisateur accède à la page des éléments, puis asynctask ne peut pas obtenir le résultat. Sur le débogage asynctask fonctionne, mais lorsqu'il est exécuté l'application normalement asynctask ne fonctionne pas. Si je sélectionne la catégorie sur spinner, asynctask fonctionne. Je pense, c'est à propos d'appeler asynctask sur les éléments sélectionnés spinner mais je ne sais pas comment y remédier.Android AsyncTask Runtime Error
Encore une fois, sur le programme de débogage fonctionne comme prévu, mais quand je lance l'application normalement asynctask ne peut pas obtenir des éléments. Je dois sélectionner la catégorie dans spinner pour les travaux comme prévu.
Connexion Page:
public class LoginUser extends AsyncTask<String,String,String>{
private ProgressDialog dialog = new ProgressDialog(LoginActivity.this);
private String UName;
private String PWord;
public LoginUser(String user_name,String pass_word){
this.UName = user_name;
this.PWord = pass_word;
}
@Override
protected void onPreExecute() {
dialog.setMessage("Please wait...");
dialog.show();
}
@Override
protected String doInBackground(String... params) {
String uid = GetUser(UName,PWord);
return uid;
}
protected void onPostExecute(String uid){
if(uid.equals("0")){
Toast toast = Toast.makeText(getBaseContext(), "Login failed.", Toast.LENGTH_SHORT);
toast.show();
}
else{
SPE = SP.edit();
SPE.putString("username", username);
SPE.putString("password", password);
SPE.putString("user_id", user_id);
SPE.commit();
Intent intent = new Intent(LoginActivity.this,MainActivity.class);
bundle.putString("login", "login");
intent.putExtras(bundle);
startActivity(intent);
}
dialog.dismiss();
}
}
Article Page:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
intent = new Intent(MainActivity.this,ItemActivity.class);
bundle = new Bundle();
veriler = getIntent().getExtras();
String PageLogin = "";
PageLogin = veriler.getString("login");
spn = (Spinner)findViewById(R.id.spinner1);
items = new String[4][0];
categories = new String[11];
categories[0] = "All";
categories[1] = "Computers";
categories[2] = "Mobile";
categories[3] = "Home Electronics";
categories[4] = "Fashion";
categories[5] = "Magazines";
categories[6] = "Health & Beauty";
categories[7] = "Movie & Music";
categories[8] = "Furnitures";
categories[9] = "Toys";
categories[10] = "Accessories";
ArrayAdapter<String> spn_adapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_spinner_item, categories);
spn_adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spn.setAdapter(spn_adapter);
if(PageLogin.equals("login")){
CatID="0";
new GetAllItemsAS().execute();
}
spn.setOnItemSelectedListener(new OnItemSelectedListener(){
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
selectedCat = spn.getSelectedItem().toString().trim();
if(selectedCat.equals("All")){
CatID="0";
}
else if(selectedCat.equals("Computers")){
CatID="1";
}
else if(selectedCat.equals("Mobile")){
CatID="2";
}
else if(selectedCat.equals("Home Electronics")){
CatID="3";
}
else if(selectedCat.equals("Fashion")){
CatID="4";
}
else if(selectedCat.equals("Magazines")){
CatID="5";
}
else if(selectedCat.equals("Health & Beauty")){
CatID="6";
}
else if(selectedCat.equals("Movie & Music")){
CatID="7";
}
else if(selectedCat.equals("Furnitures")){
CatID="8";
}
else if(selectedCat.equals("Toys")){
CatID="9";
}
else if(selectedCat.equals("Accessories")){
CatID="10";
}
new GetAllItemsAS().execute();
}
public void onNothingSelected(AdapterView<?> arg0) {
CatID="0";
new GetAllItemsAS().execute();
}
});
}
Tous les codes:
LoginActivity:
public class LoginActivity extends Activity {
SharedPreferences SP;
SharedPreferences.Editor SPE;
private String username;
private String password;
private String user_id;
private Bundle bundle;
private String _username;
private String _password;
private TextView _usernameTxt;
private TextView _passwordTxt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
bundle = new Bundle();
SP = getSharedPreferences("UserInfoXML", MODE_PRIVATE);
_usernameTxt = (TextView)findViewById(R.id.userNameSignInTxt);
_passwordTxt = (TextView)findViewById(R.id.PasswordSignInTxt);
Button login = (Button)findViewById(R.id.SignInButton);
login.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
username = _usernameTxt.getText().toString();
password = _passwordTxt.getText().toString();
new LoginUser(username,password).execute();
}
});
}
public class LoginUser extends AsyncTask<String,String,String>{
private ProgressDialog dialog = new ProgressDialog(LoginActivity.this);
private String UName;
private String PWord;
public LoginUser(String user_name,String pass_word){
this.UName = user_name;
this.PWord = pass_word;
}
@Override
protected void onPreExecute() {
dialog.setMessage("Please wait...");
dialog.show();
}
@Override
protected String doInBackground(String... params) {
String uid = GetUser(UName,PWord);
return uid;
}
protected void onPostExecute(String uid){
if(uid.equals("0")){
Toast toast = Toast.makeText(getBaseContext(), "Login failed.", Toast.LENGTH_SHORT);
toast.show();
}
else{
SPE = SP.edit();
SPE.putString("username", username);
SPE.putString("password", password);
SPE.putString("user_id", user_id);
SPE.commit();
Intent intent = new Intent(LoginActivity.this,MainActivity.class);
bundle.putString("login", "login");
intent.putExtras(bundle);
startActivity(intent);
}
dialog.dismiss();
}
}
public String GetUser(String user_name,String pass_word){
String id = null;
PropertyInfo kulad = new PropertyInfo();
kulad.name= "username";
kulad.setValue(user_name);
kulad.type = PropertyInfo.STRING_CLASS;
PropertyInfo parola = new PropertyInfo();
parola.name= "password";
parola.setValue(pass_word);
parola.type = PropertyInfo.STRING_CLASS;
SoapObject request = new SoapObject("http://shopar.org/", "Login");
request.addProperty(kulad);
request.addProperty(parola);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.bodyOut=request;
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport = new HttpTransportSE("http://service.melihmucuk.com/ShopArWS.asmx");
androidHttpTransport.debug = true;
try {
androidHttpTransport.call("http://shopar.org/Login", envelope);
SoapPrimitive response = (SoapPrimitive) envelope.getResponse();
id = String.valueOf(response.toString());
}
catch (Exception e) {
e.printStackTrace();
id = "0";
}
return id;
}
MainActivity:
public class MainActivity extends Activity {
private String[] categories;
private String[][] items;
private String selectedCat = "All";
private String CatID = "0";
private Spinner spn;
private Intent intent;
private Bundle bundle;
private Bundle veriler;
private String[][] GetAllItems(){
SoapObject request = new SoapObject("http://shopar.org/", "GetAllItem");
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
//http://192.168.2.240/ShopArService/ShopArWS.asmx
HttpTransportSE androidHttpTransport = new HttpTransportSE("http://service.melihmucuk.com/ShopArWS.asmx");
androidHttpTransport.debug = true;
try {
androidHttpTransport.call("http://shopar.org/GetAllItem", envelope);
SoapObject response = (SoapObject) envelope.getResponse();
int allCounter=0;
int catCounter=0;
String cat_id="";
for(int i=0;i<response.getPropertyCount();i++){
Object property = response.getProperty(i);
if(property instanceof SoapObject){
SoapObject item = (SoapObject) property;
cat_id = item.getProperty("cat_id").toString();
if(CatID.equals("0")){
allCounter++;
}
else if(CatID.equals(cat_id)){
catCounter++;
}
}
}
if(CatID.equals("0")){
items[0] = new String[response.getPropertyCount()]; //item_id
items[1] = new String[response.getPropertyCount()]; //price
items[2] = new String[response.getPropertyCount()]; //title
items[3] = new String[response.getPropertyCount()]; //desc
for(int i=0;i<response.getPropertyCount();i++){
Object property = response.getProperty(i);
if(property instanceof SoapObject){
SoapObject item = (SoapObject) property;
String item_id = item.getProperty("item_id").toString();
String price = item.getProperty("price").toString() + " TL";
String title = item.getProperty("title").toString();
String desc = item.getProperty("desc").toString();
items[0][i] = item_id;
items[1][i] = price;
items[2][i] = title;
items[3][i] = desc;
}
}
}
else{
items[0] = new String[catCounter]; //item_id
items[1] = new String[catCounter]; //price
items[2] = new String[catCounter]; //title
items[3] = new String[catCounter]; //desc
for(int k=0;k<catCounter;k++){
for(int i=0;i<response.getPropertyCount();i++){
Object property = response.getProperty(i);
if(property instanceof SoapObject){
SoapObject item = (SoapObject) property;
String item_id = item.getProperty("item_id").toString();
String price = item.getProperty("price").toString() + " TL";
String title = item.getProperty("title").toString();
String desc = item.getProperty("desc").toString();
String catid = item.getProperty("cat_id").toString();
List <String> list = Arrays.asList(items[0]);
if(CatID.equals(catid)){
if(list.contains(item_id)){
}
else{
items[0][k] = item_id;
items[1][k] = price;
items[2][k] = title;
items[3][k] = desc;
break;
}
}
}
}
}
}
}
catch (Exception e) {
e.printStackTrace();
}
return items;
}
public class GetAllItemsAS extends AsyncTask<String,String,String[][]>{
private ProgressDialog dialog = new ProgressDialog(MainActivity.this);
@Override
protected void onPreExecute() {
dialog.setMessage("Loading...");
dialog.show();
}
@Override
protected String[][] doInBackground(String... params) {
GetAllItems();
return items;
}
protected void onPostExecute(String[][] items){
ASFinish();
dialog.dismiss();
}
}
public void ASFinish(){
ListView liste = (ListView)findViewById(R.id.listView1);
ListArrayAdapter adapter = new ListArrayAdapter(MainActivity.this,items[2],items[3],items[1],items[0]);
liste.setAdapter(adapter);
liste.setOnItemClickListener(new AdapterView.OnItemClickListener(){
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
bundle.putString("item_id", items[0][arg2]);
intent.putExtras(bundle);
startActivity(intent);
}
});
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// intent = new Intent(MainActivity.this,ItemActivity.class);
// bundle = new Bundle();
veriler = getIntent().getExtras();
String PageLogin = "";
if(veriler != null){
PageLogin = veriler.getString("login");
}
spn = (Spinner)findViewById(R.id.spinner1);
items = new String[4][0];
categories = new String[11];
categories[0] = "All";
categories[1] = "Computers";
categories[2] = "Mobile";
categories[3] = "Home Electronics";
categories[4] = "Fashion";
categories[5] = "Magazines";
categories[6] = "Health & Beauty";
categories[7] = "Movie & Music";
categories[8] = "Furnitures";
categories[9] = "Toys";
categories[10] = "Accessories";
ArrayAdapter<String> spn_adapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_spinner_item, categories);
spn_adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spn.setAdapter(spn_adapter);
if(PageLogin.equals("login")){
CatID="0";
new GetAllItemsAS().execute();
}
spn.setOnItemSelectedListener(new OnItemSelectedListener(){
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
selectedCat = spn.getSelectedItem().toString().trim();
if(selectedCat.equals("All")){
CatID="0";
}
else if(selectedCat.equals("Computers")){
CatID="1";
}
else if(selectedCat.equals("Mobile")){
CatID="2";
}
else if(selectedCat.equals("Home Electronics")){
CatID="3";
}
else if(selectedCat.equals("Fashion")){
CatID="4";
}
else if(selectedCat.equals("Magazines")){
CatID="5";
}
else if(selectedCat.equals("Health & Beauty")){
CatID="6";
}
else if(selectedCat.equals("Movie & Music")){
CatID="7";
}
else if(selectedCat.equals("Furnitures")){
CatID="8";
}
else if(selectedCat.equals("Toys")){
CatID="9";
}
else if(selectedCat.equals("Accessories")){
CatID="10";
}
new GetAllItemsAS().execute();
}
public void onNothingSelected(AdapterView<?> arg0) {
CatID="0";
new GetAllItemsAS().execute();
}
});
}
ItemActivity est une page d'article spécifique. Lorsque l'utilisateur clique sur un élément de MainActivity, l'utilisateur accède à ItemActivity pour voir les détails de l'élément. –
Oui, et je pense que vous passez des valeurs extras entre les deux activités. Pourriez-vous essayer ce que j'ai dit et voir si cela fonctionne? –
Il n'y a pas de changement. –